Good to know!! Thanks.
I looked it up again to try to find the right part name/description (drive tire is it, you hit that on the nose) and found two sites talking about the issue. One said the part was impossible to find and had a series of comments offering work-arounds, the other casually mentioned ordering a new one like it's no big deal. If it does have that issue, I'll probably risk being able to find a replacement; it doesn't sound like a huge deal-breaker.
If nothing else, someone here can probably point me in the right direction as to where to find good supplies.
I'll be heading over on my lunch break to check it out. (In about an hour) If I buy it, my boss is willing to let the two of us take off in the middle of the day to go load it up into his truck while they're still open and then he'll deliver it later tonight when he gets off work. (I have the BEST boss ever!!)
Thanks!